Imokhai Tenebe | Covenant University Canaanland, Ota. (original) (raw)
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Cogent Engineering
Adsorption of copper ions out of aqueous solution by preparing activated carbon from unripe Musa ... more Adsorption of copper ions out of aqueous solution by preparing activated carbon from unripe Musa paradisiaca peel (UmpP) with KOH was investigated. Estimation of the adsorption constants was achieved by adopting the Langmuir and Freundlich models. Results revealed that the adsorption process was fast and equilibrium was reached at 55 mins. The adsorption efficiency was highly influenced by the pH of the solution, and the maximum adsorption was attained at pH 7.5. In addition, an increase in adsorption capacity was observed with increase in contact time and initial copper concentration. The adsorption process was explained by both Langmuir and Freundlich models having R 2 value of 0.9977 and 0.9959 at 303 K respectively and R 2 value of 0.9922 and 0.9904 at 308 K respectively. The maximum adsorption capacity of KOH-modified UmpP at the specified conditions was found to be 9.980 and 9.766 mg/g at 303 and 308 K respectively. Sequel to modelling the kinetic data, the Pseudo-second-order model gave the best fit with R 2 = 0.9990
Cogent Engineering
Adsorption of copper ions out of aqueous solution by preparing activated carbon from unripe Musa ... more Adsorption of copper ions out of aqueous solution by preparing activated carbon from unripe Musa paradisiaca peel (UmpP) with KOH was investigated. Estimation of the adsorption constants was achieved by adopting the Langmuir and Freundlich models. Results revealed that the adsorption process was fast and equilibrium was reached at 55 mins. The adsorption efficiency was highly influenced by the pH of the solution, and the maximum adsorption was attained at pH 7.5. In addition, an increase in adsorption capacity was observed with increase in contact time and initial copper concentration. The adsorption process was explained by both Langmuir and Freundlich models having R 2 value of 0.9977 and 0.9959 at 303 K respectively and R 2 value of 0.9922 and 0.9904 at 308 K respectively. The maximum adsorption capacity of KOH-modified UmpP at the specified conditions was found to be 9.980 and 9.766 mg/g at 303 and 308 K respectively. Sequel to modelling the kinetic data, the Pseudo-second-order model gave the best fit with R 2 = 0.9990
INTED2016 Proceedings, 2016
International Journal of Applied Engineering Research
The presence of escarpment plays an important role in the distribution of rainfall. Its role was ... more The presence of escarpment plays an important role in the distribution of rainfall. Its role was studied and was put together in this paper. Various parameter were studied and they included: amount of rainfall, elevation, latitude and the distance from the sea. In this research, frequency analysis was performed on the parameters and the log-pearson type III was considered the most suitable distribution method. Also, principal component analysis was used to determine that two components best estimates the variables with close correlation to be rainfall, elevation, latitude and distance from the sea as component 1 and distance to nearest neighbour and longitude as component 2. With regional coefficient of variation of 22%, the area has low variability indicative of high rainfall values with good consistency. Annual average rainfall of South Eastern Nigeria is at 1744mm with bi-modal double peaks in July and September as in most parts of Southern Nigeria. From the determination of the difference in mean, it is again obvious that areas close to Udi escarpment have mean below or slightly above mean, hence affecting rainfall.
Disinfection is considered to be the primary mechanism for the inactivation/destruction of pathog... more Disinfection is considered to be the primary mechanism for the inactivation/destruction of pathogenic organisms to prevent the spread of diseases and of which some of the organisms maybe needed for degradation as occurring in septic tank. This work investigated the effects of disinfectants on aerobic sewage degradation using Dettol and Izal as case study. Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD) and Fecal coliform were used to determine the effectiveness of the two disinfectants. Sewage for analysis were collected from the University of Nigeria Nsukka treatment plant for laboratory analysis. Five 4 Litres containing sewage having different dose in ml of the two disinfectants (Dettol and Izal) of 0.5, 1.0, 1.5, 2.0, and 2.5 with one control were established.Samples for analysis were obtained for 4 weeks for each disinfectants having interval of 3 days. Short and Long term effects of the disinfectants were studied and the results were analyzed using Turkey-Kramer ...
INTED2016 Proceedings, 2016
Cogent Engineering
Adsorption of copper ions out of aqueous solution by preparing activated carbon from unripe Musa ... more Adsorption of copper ions out of aqueous solution by preparing activated carbon from unripe Musa paradisiaca peel (UmpP) with KOH was investigated. Estimation of the adsorption constants was achieved by adopting the Langmuir and Freundlich models. Results revealed that the adsorption process was fast and equilibrium was reached at 55 mins. The adsorption efficiency was highly influenced by the pH of the solution, and the maximum adsorption was attained at pH 7.5. In addition, an increase in adsorption capacity was observed with increase in contact time and initial copper concentration. The adsorption process was explained by both Langmuir and Freundlich models having R 2 value of 0.9977 and 0.9959 at 303 K respectively and R 2 value of 0.9922 and 0.9904 at 308 K respectively. The maximum adsorption capacity of KOH-modified UmpP at the specified conditions was found to be 9.980 and 9.766 mg/g at 303 and 308 K respectively. Sequel to modelling the kinetic data, the Pseudo-second-order model gave the best fit with R 2 = 0.9990
Cogent Engineering
Adsorption of copper ions out of aqueous solution by preparing activated carbon from unripe Musa ... more Adsorption of copper ions out of aqueous solution by preparing activated carbon from unripe Musa paradisiaca peel (UmpP) with KOH was investigated. Estimation of the adsorption constants was achieved by adopting the Langmuir and Freundlich models. Results revealed that the adsorption process was fast and equilibrium was reached at 55 mins. The adsorption efficiency was highly influenced by the pH of the solution, and the maximum adsorption was attained at pH 7.5. In addition, an increase in adsorption capacity was observed with increase in contact time and initial copper concentration. The adsorption process was explained by both Langmuir and Freundlich models having R 2 value of 0.9977 and 0.9959 at 303 K respectively and R 2 value of 0.9922 and 0.9904 at 308 K respectively. The maximum adsorption capacity of KOH-modified UmpP at the specified conditions was found to be 9.980 and 9.766 mg/g at 303 and 308 K respectively. Sequel to modelling the kinetic data, the Pseudo-second-order model gave the best fit with R 2 = 0.9990
INTED2016 Proceedings, 2016
International Journal of Applied Engineering Research
The presence of escarpment plays an important role in the distribution of rainfall. Its role was ... more The presence of escarpment plays an important role in the distribution of rainfall. Its role was studied and was put together in this paper. Various parameter were studied and they included: amount of rainfall, elevation, latitude and the distance from the sea. In this research, frequency analysis was performed on the parameters and the log-pearson type III was considered the most suitable distribution method. Also, principal component analysis was used to determine that two components best estimates the variables with close correlation to be rainfall, elevation, latitude and distance from the sea as component 1 and distance to nearest neighbour and longitude as component 2. With regional coefficient of variation of 22%, the area has low variability indicative of high rainfall values with good consistency. Annual average rainfall of South Eastern Nigeria is at 1744mm with bi-modal double peaks in July and September as in most parts of Southern Nigeria. From the determination of the difference in mean, it is again obvious that areas close to Udi escarpment have mean below or slightly above mean, hence affecting rainfall.
Disinfection is considered to be the primary mechanism for the inactivation/destruction of pathog... more Disinfection is considered to be the primary mechanism for the inactivation/destruction of pathogenic organisms to prevent the spread of diseases and of which some of the organisms maybe needed for degradation as occurring in septic tank. This work investigated the effects of disinfectants on aerobic sewage degradation using Dettol and Izal as case study. Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD) and Fecal coliform were used to determine the effectiveness of the two disinfectants. Sewage for analysis were collected from the University of Nigeria Nsukka treatment plant for laboratory analysis. Five 4 Litres containing sewage having different dose in ml of the two disinfectants (Dettol and Izal) of 0.5, 1.0, 1.5, 2.0, and 2.5 with one control were established.Samples for analysis were obtained for 4 weeks for each disinfectants having interval of 3 days. Short and Long term effects of the disinfectants were studied and the results were analyzed using Turkey-Kramer ...
INTED2016 Proceedings, 2016